Learn when to use indicating valves on fire protection systems and how NFPA standards governing these devices have changed.
Globe valve vs. gate valve vs. ball valve—which is best for the job? QRFS explains how to pick the right valve for specific applications.
Learn about the annual dry sprinkler tests in NFPA 25, which includes requirements for various sprinkler system components.
With threaded ports for gauges and a drain valve, backflow-preventing sprinkler check valves can expedite the code-compliant installation of system risers. Read on to learn more about the design and installation of “shotgun” risers—and how they compare to common alternatives.
Get to know your fire sprinkler system risers better with a look at common components and manifolds in wet-pipe sprinkler systems—both commercial and residential.
Each fire riser serves as a central hub for sprinkler system inspection, testing, and repair. For more on residential and commercial risers, fire sprinkler riser components, and how they’re used in different system types, read on.
Many fire protection items are listed, approved, or certified—but what do they really mean? Learn about UL listings, FM approvals, & other certifications.
For a slip-free grip and maximum leverage, follow QRFS’s guide to sizing valve wheel wrenches that turn handwheel valves safely.
A wide range of standards govern the construction and use of valves—so, can angle valves designed for one purpose be used for another? QRFS looks at angle valves in fire protection, HVAC, plumbing, and beyond, discussing their construction, manufacturing standards, and suitability for various applications.
The additional components required in dry fire sprinkler systems compared to wet systems can make installation more challenging. QRFS helps you understand NFPA 13 requirements for installing dry pipe and check valves, as well as quick-opening and antiflooding devices.
